비아그라에 대한 최종 가이드
At solitary oral doses of 100 mg and two hundred mg, transient dose-related impairment of color discrimination was detected utilizing the Farnsworth-Munsell one hundred-hue check, with peak effects close to the time of peak plasma ranges. This getting is according to the inhibition of PDE6, that's involved in phototransduction while in the retina.G